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Auto Zone Video - The Toyota Highlander (2011) offers three distinct types of performance: a 2.7-liter four-cylinder engine joined the lineup in 2009, offering an EPA-estimated 25 MPG rating in highway driving. The 2.7-liter engine produces 187 horsepower and 186 lb.-ft. of peak torque. The engine is equipped with a variable intake manifold and dual variable valve timing with intelligence (VVT-i), which controls phasing on both the intake and exhaust camshafts to optimize torque and fuel efficiency. The four-cylinder engine is teamed exclusively with a standard six-speed electronically controlled automatic transmission. The available 3.5-liter V6 (standard on Limited) produces 270 horsepower at 6,200 RPM and 248 lb.-ft. of torque at 4,700 RPM. The V6, also, is equipped with dual VVT-i and a variable intake manifold. A five-speed electronically controlled automatic transmission (ECT) offers selectable manual sequential shifting. The Toyota Highlander Hybrid model's Hybrid Synergy Drive features a new, more powerful 3.5-liter V6 for 2011, replacing the previous 3.3-liter V6. The system pairs the gasoline V6 engine with a high-torque electric drive motor-generator for total system output of 280 net horsepower. A second rear-mounted motor provides automatic on-demand four-wheel drive traction. The 2011 Highlander Hybrid receives EPA estimated fuel economy ratings of 28 MPG city and 28 MPG highway. The 4WD Toyota Highlander Hybrid uniquely generates rear-wheel power with a separate electric motor (MGR) that provides additional drive torque on demand. Thus, the Toyota Highlander Hybrid 4WD-i system does not require power-transfer gearing or a driveshaft from the front. The system electronically varies front and rear torque distribution depending on traction conditions. Activating an EV mode switch located on the front center console allows the driver to operate strictly in electric-mode under certain conditions for a limited distance at low speeds, or in some stop-and-go driving conditions. A new ECON drive mode switch activates a throttle control program that reduces the throttle response during acceleration, enhancing fuel economy. The Hybrid System Indicator in the instrument gauge panel provides the driver with a guideline to help maximize fuel consumption.[endtext]
